CVE-2026-101148 BackupSheep WordPress Backup Plugin - Broken Access Control

BackupSheep WordPress Backup Plugin <= 1.8 contains a broken access control vulnerability caused by improper validation of integration key, letting unauthenticated attackers create/download full backups and delete files, leading to sensitive data disclosure and site takeover, exploit requires no authentication.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.31% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, Data Tampering, Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
1 October 2026
Updated
15 October 2026
Weakness
CWE-73

Vendor fix

Remove the plugin from any site where it is installed as no fixed version is available.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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